High-tension electric machine



C. FAYER.

HIGH TENSION ELECTRIC MACHiNE.

APPLICATION FILED JUNE 26, 1919.

Patented Aug. 10, 1920.

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' cessible,

I CHARLES FAYER, OF NEW YORK,

N. -Y., ASSIGNOR T0 WAPPLER ELECTRIC CO., INC., A

CORPORATION OF NEW YORK.

HIGH-TENSION ELECTRIC MACHIN'E.

To all whom it may concern;

Be it known that I, CHARLES FAYER, a citizen of the United States,residing at New York ,city, New York, have invented certain new anduseful Improvements in High-Tension Electric Machines, of which thefollowing is a full. clear, and concise description.

My invention relates to high tension electric machines, of a typesuitable for use in connection with X-ray tubes and the like, and inwhich a rectifying disk is used in connection with a high tensiontransformer.

More particularly stated, my invention contemplates a high tensionelectric machine of the kind just mentioned, and in which I give thevarious parts such form and arrangement as to render them re'adily acaswell as to a greatextent removable andreplaceable independently of eachother.

My invention further contemplatesthe arrangement of the various parts insuch relative positions as to improve the insulation of the variousconducting members.

In addition, my invention comprehends the collection of the parts insuch manner as to promote strength, simplicity and compactness, combinedwith increased efi'iciency.

Reference is made to the accompanying drawing forming a part of thisspecification, and in which the various parts are designated byreference numerals, thefigure be-v mg a perspectlve of my device withcertain parts broken away.

A cabinet 1 is 2 and with a door 3 as well as with a top4. These partsare may be constructed of other material should occasion so require. Thecabinet is provided with a removable glass or bakelite plate window 5. p

Located within the cabinet is an iron table 6, secured rigidly inposition by aid of braces, one of which. is shown at 7.

Below the table 6 is a transformer 8 the secondary of which supplies thehigh. tension currents to be rectified.

Resting upon the iron table 6 and detachably secured thereto by bolts 9is a synchronous motor or rotary converter 10. This motor is providedwith a massive bearing 11 and with an armature shaft 12 which extendsthrough'this bearing and to a distance of several inches therefrom.

Specification of Letters Patent.

county of Bronx, and State of' provided with a door way a usually madeof wood, but

Patented Aug. 10, 1920.

i Application filed June 26, 1919. Serial No. 306,813.

, extend through holes in a clamping plate 16 and into engagement withthe head 13. By removing the bolts, the disk 14 may be readily detached,and by replacing the bolts the disk may be again secured upon the shaft.The window 5 is removable in order to facilitate access to the disk 14and other parts to be removed.

The rectifying disk 14 carries a pair 'of sectors 17, made of conductingmaterial and connected by a wire or metallic strip 18; also another pairof sectors 19, similarly connected by a wire or strip 20.

Disposed adjacent the path of travel of the sectors 17, 19 are fourbrushes 21, 22, 23, 24, supported by four posts 25, 26, 27, 28 ofinsulating vulcanite.

The post 26 is mounted upon a standard 29, which is made of metal anddetachably secured by a bolt 30 to the table 6. The post 28 is mountedupon a metallic standard 29, similar to the standard 29 and like thelatter detachably secured to the table 6. The post 25 is mounted upon abeam 31, made of metal and secured to the metallic posts 29, 30. Thebeam 30 has substantially the general form of an inverted V. The post 27is secured to a metallic bracket 32, which is mounted upon the underside of the table 6.- This bracket, like the standards 29 and 3.0, issubstantially flush with the adjacent edge of the table 6, so that theposts 25, 26, 27, 28 each extend out toward the window 5, for somelittle distance from the general vertical plane of the table 6.

The armature shaft 12 is of such length as to support the disk 14 in avertical plane a little to the right ofthe brushes 21, 22, 23, 24,according to the figure.

Thus the disk 14 is spaced far enough from the table 6 to prevent all.danger of sparks leaping from the disk or from any posts carried by itto the metallic table or any of the various metallic posts mountedthereon. Thus by placing the disk 14 at a safe distance from the table,the disk is disposed nearer to the window 5, and hence, more readilyaccessible for purposes of removal and replacement.

Connected with the secondary of the transformer 8 are two leads 33, 34,which extend through two insulators 35, 36 which are mounted upon woodenarms 37, 38, these arms being detachably secured to the metallic table6. The leads 33, 34, are connected to the brushes 22, 24. A lead isconnected to the brush 21 and to a post 40 made of insulating material,and through which extends a conductor 41. A similar post 42 is connectedto a lead 43, and a conductor 44, which may be a part of the lead 43,extends through this post. The lead 43 extends through a ,wooden arm 43,supported by the table, and is provided with a portion 46 which isconnected to the brush 23.

The rectified currents are taken from the -conductors 41, 44, at the topof the cabinet.

The manner in which the high tension currents are rectified forms nopart of my present invention, and is accomplished in the usual manner bythe action of the rectifying disk and the synchronous motor actuatingthe same.

The operation of my device may be readily understood from the foregoingdescription.

The transformer 8 and the synchronous motor 10 being in action, the hightension currents are induced in the secondary of the transformer and arerectified as above mentioned. No sparks can leap from the disk to thetable or to any metallic part carried by or immediately associated withthe table.

If, however, the window 5 be removed the parts are readily accessible.The disk may e removed, and for this purpose is disengaged from the hub13 and armature shaft by merely taking out the bolts 15.

The standards 29 and 30 may be quickly and easily detached from thetable, and re moved along with the beam 31, the leads 33, 34 beingdisconnected for this purpose. Thus the standards 29, 30 and the beam 31may together be considered as a frame, having roughly an arcuate formand removable bodily with the posts 25, 26, and 28.

By taking out the bolts-9 the motor 10, carrying the armature shaft 12and the disk 14, may be removed without disturbing the frame consistinof the standards 29, 30 and the beam 31. Similarly the removal of thisframe is accomplished without disturbing the motor or the disk.

The wooden arms 37, 38, 45 are easily taken out, or disconnected fromthe parts to which they are secured.

It will be noted that by my arrangement of the parts the insulation isgreatly improved,

since all of the metallic parts are so spaced and arranged that whilegreat differences in potential may be developed between differentmetallic parts, no great diflerence in potential can develop between anytwo metallic parts located close together. An important feature of theinvention is adequate spacing between such metallic parts as aresubjected to excessive differences in potential.

The posts are also arranged in such manner as to prevent leakage ofcurrent and to avoid as far as practicable the development of allconditions tending to subject the posts to undue electric strain, evenwhen my device is used for long periods'of time or subjected to moderatedegrees of dampness or employed under climatic conditions tending toinvite a breakdown.

It will also be noted that my arrangement promotes great strength,stability, efficiency and compactness.

I do not limit myself to the precise arrangeinent shown, as variationstherefrom can be made within the scope of my claims.

I claim:

1. In a high tension electric machine the combination of a 'metallictable, a plurality of supporting members secured thereupon and disposedadjacent one edge thereof, posts of insulating material mounted uponsaid supporting members and extending away from said ed e of saidtable,brushes mounted upon sai posts and thus spaced away from said table andfrom all metallic parts. in immediate proximity thereto, a synchronousmotor mounted upon said table and provided with an armature shaftextendin away from said table, and a rectifying dis mounted upon saidarmature shaft and provided with conducting members rotating in a planedisposed adjacent said brushes.

2. In a high tension electric machine the combination of a cabinetprovided with a window, a table disposed within said cabinet, asynchronous motor detachabl mounted upon said table and located adjacent' said window so as to be readily removable through said windowwhen detached from said table, a rectifying disk located within saidcabinet and connected with said motor so as to be actuated thereby, aframe detachably mounted upon said table, posts mounted upon said frame,and brushes carried by said posts and co-acting with said rectifyingdisk for the purpose of rectifying electric currents, said frame withsaid posts and brushes being as a unit so located as to be readilyremovable as a unit through said window independently of said motor.

3. In a high tension electric machine the combination of a cabinet, asupporting table located within said cabinet, a synchronous motormounted upon provided with a revoluble shaft projecting over one ed ethereof, a frame mounted u on said ta le and disposed adjacent said e gethereof, posts of insulating material mounted upon said frame andprojecting over said edge of said table, brushes carried by said posts,a revoluble rectifying member carried by said shaft and co-acting withsaid brushes for the purpose of rectifying electric currents insynchronism withv said I motor, said revoluble rectifying member betableand substantially mg spaced from said supporting table by a distancesufficient to prevent sparking as between said disk and said table.

4. In a high tension electric machine the a metallic supporting table,

side thereof, a post carried by said arm and extending beyond the edgeof said table, a pair of standards detachably mounted upon said table, aframe member mounted upon said standards and together therewithconstitutin a frame, a plurality of posts mounted upon said frame,brushes mounted upon said last mentioned posts and upon said firstmentioned post, all of said brushes being arranged substantially in avertical plane, a synchronous motor mounted upon said table and providedwith a revoluble shaft extending beyond said edge of said parallel withends of said posts, a rectifying disk mounted upon said revoluble shaft,and co-acting' with said brushes for the purpose of rectifymg currents,said disk occupying a plane said table and,

-mechanism co-acti table,

substantiall parallel with said plane in which said brushes are mounted.

5. In a high tension electric machine the combination of a table and armmounted upon the under side of said table, a pair of standards mountedupon the upper side of said table, a frame member secured to saidstandards, mounted u n said standards and said frame mem r and also uponsaid arm, brushes carried by said posts and a rectifyin disk revolublymounted adjacent said 7 rushes and provided with contact with saidbrushes for the purpose of rectifying 6. In a high tension e ectricmachine the combination of a metallic table, a pair of metallicstandards mounted upon said table and disposed adjacent one edgethereof, a frame member mounted upon said standards and togethertherewith constituting a frame, an arm mounted upon the under side ofsaid a post of insulatin material mounted upon said arm and exten inpast said edge of said table, other posts 0 insulating materialmountedupon said frame and each projecting, past said edge of saidtable, a brush mounted upon each post, all of said brushes beingdisposed su vertical plane,a synchronous motor mounted upon said tableand provided with an armature shaft having suflicient length to extendbeyond said edge of said table and a rectifying disk mounted upon shaftand disposed adjacent the which said brushes are located.

' CHARLES FAYER.

plane in posts of insulating material electric currents.

the outer end of said

